Malicious PDF — malware analysis report

Static analysis result for SHA-256 1062fa047a2b02c7…

MALICIOUS

PDF

103.3 KB Created: 2021-04-02 19:25:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: dda33536fc429f372b025f18f89d3ac2 SHA-1: 633ab974b12e302e43df2388c14787dc67f41479 SHA-256: 1062fa047a2b02c70ef44ed005e293f23597f72c701b675495ab5baf7ec5eac9
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, with one specifically directing to a site that mimics a search result for "is ticketmaster legitimate". Heuristics indicate this PDF is part of a link farm hosted on disposable domains, and ClamAV detection confirms it as a phishing trojan. While no scripts were directly extracted, the PDF structure and URL patterns are consistent with phishing lures designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://golowaki.ru/wix?keyword=is+ticketmaster+legitimate PDF link annotation
    • http://rotenazo.iblogger.org/21548387456.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478133/normal_6060bb2fb04e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476954/normal_605fd5a5ca123.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366024/normal_5fd2415f9a862.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415739/normal_601bf91f7cebe.pdfIn PDF document text
    • http://penutiponexeb.iblogger.org/21703683272.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420240/normal_5fcdb72d797e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454432/normal_5fc7e7fe753f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474445/normal_60199f60c0d32.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pubupetedibu.rf.gd/middlesex_jeffrey_eugenides.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/hallelujah_shrek_piano_sheet.pdfIn PDF document text
    • http://pomadepoxe.epizy.com/amma_tamil_songs_audio_free.pdfIn PDF document text
    • http://segoxegigo.epizy.com/types_of_carpentry_joints.pdfIn PDF document text
    • https://9049409e-dcbb-43fe-b7cb-0f7a5d042cf1.filesusr.com/ugd/e59eee_df5810986bac405dbdc5f21544d9faea.pdf?index=trueIn PDF document text
    • https://850a36a1-966c-46c3-86ed-e15bcb5778a7.filesusr.com/ugd/ede58b_28a293e9a6ec4e1aafc492678ff33215.pdf?index=trueIn PDF document text
    • http://dowijasimenazo.epizy.com/hatcher_pass_avalanche_report.pdfIn PDF document text
    • http://kidexedobarali.rf.gd/sony_recorder_icd-ux533f.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/xawuvupivimilivofexujen.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/jobs_after_mba_in_supply_chain_management.pdfIn PDF document text
    • http://zetanurujufifis.epizy.com/85640099534.pdfIn PDF document text
    • https://8bd0dbf5-62e0-4684-a95a-1d9666dfa34a.filesusr.com/ugd/e71694_829a62f58d8a4e7b86b48990d0437e36.pdf?index=trueIn PDF document text
    • http://dipomik.epizy.com/fractions_to_decimals_worksheet_7th_grade.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001591f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1591F 5120 bytes
SHA-256: 55ffc64134610268198515d6fccf2d428647c3434936af59f41eb7adf773872e
font_01_sfnt_off00016a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16A77 10784 bytes
SHA-256: 36bc31dee196b5f5df1d45fa4769507a05c5edea733f5fc06de080c138d1a8f3

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